Place your hand a few inches above a white piece of paper,examine the hand for a few moments, allow your eyes to become focused on the base of your middle finger (or you can focus on the tips) remain focused and you will begin to see the outline of your aura, it is important not to focus more than 10-15 minute sessions so as not to strain your eyes.
This is quite a basic way to learn to see your aura but works well when first learning.
Concentration and focus being the key to success here.
Don't be discouraged if it does not happen first try "practice makes perfect"